initializer.js

Ember.Application.initializer({
  name: "storageService",

  initialize: function(container, application) {

    application.register('service:storage', application.StorageService, {
      singleton: true
    });
    
    application.inject('route', 'storage', 'service:storage');
    application.inject('controller', 'storage', 'service:storage');
  }
});